2153918289 has 8 divisors (see below), whose sum is σ = 2938679392. Its totient is φ = 1402551360.

The previous prime is 2153918257. The next prime is 2153918321. The reversal of 2153918289 is 9828193512.

It is an interprime number because it is at equal distance from previous prime (2153918257) and next prime (2153918321).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2153918289 - 2⁵ = 2153918257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2153918219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8348392 + ... + 8348649.

It is an arithmetic number, because the mean of its divisors is an integer number (367334924).

Almost surely, 2^2153918289 is an apocalyptic number.

It is an amenable number.

2153918289 is a deficient number, since it is larger than the sum of its proper divisors (784761103).

2153918289 is a wasteful number, since it uses less digits than its factorization.

2153918289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16697087.

The product of its digits is 311040, while the sum is 48.

The square root of 2153918289 is about 46410.3252412650. The cubic root of 2153918289 is about 1291.4464653406.

The spelling of 2153918289 in words is "two billion, one hundred fifty-three million, nine hundred eighteen thousand, two hundred eighty-nine".